Coney Island is the people's seafront — never refined, never quiet, the beach New York gave itself when it wanted somewhere to be loud. Four kilometres along the boardwalk from the rides to a Georgian dinner.
Start at Nathan's, on the corner outside the terminal, hot dogs since 1916; eat one standing up. Then the amusements: the Cyclone, the 1927 wooden coaster that's now legally a landmark, and Deno's Wonder Wheel, the 1920 Ferris wheel whose swinging cars lurch on purpose. You don't have to ride either — the structures carry the day on their own. The Aquarium is a few steps east on the boardwalk if the heat or the children demand it.
Out on the sand, the Parachute Jump stands over everything — the 1939 steel tower that's the borough's Eiffel, the thing you steer by. Walk the boardwalk east under it, and somewhere past the rides the shop signs turn Cyrillic: Brighton Beach, Little Odessa, the Russian and Georgian quarter. Find a table for khachapuri before the B/Q takes you back.